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| import ctypes | |
| import itertools | |
| import collections | |
| import numpy | |
| import math | |
| import time | |
| import re | |
| from contextlib import contextmanager | |
| import traceback | |
| import contextlib as cl | |
| import bpy | |
| import bgl | |
| from mathutils import Matrix, Vector, geometry | |
| import arnold | |
| class _AiPolymesh(cl.AbstractContextManager): | |
| def __init__(self, obj): | |
| self.bpy_obj = obj | |
| self.node = arnold.AiNode("polymesh") | |
| self._mesh = None | |
| self._meshverts = None | |
| self._meshnverts = None | |
| self._meshloops = None | |
| self._meshnloops = None | |
| self._meshpolygons = None | |
| self._meshnpolygons = None | |
| def __enter__(self): | |
| pc = time.perf_counter() | |
| try: | |
| self._mesh = self.bpy_obj.to_mesh(depsgraph=bpy.context.depsgraph, apply_modifiers=True, calc_undeformed=False) | |
| if self._mesh: | |
| self._mesh.calc_normals_split() | |
| arnold.AiMsgDebug(b" self._mesh (%f)", ctypes.c_double(time.perf_counter() - pc)) | |
| self._meshverts = self._mesh.vertices | |
| self._meshnverts = len(self._meshverts) | |
| self._meshloops = self._mesh.loops | |
| self._meshnloops = len(self._meshloops) | |
| self._meshpolygons = self._mesh.polygons | |
| self._meshnpolygons = len(self._meshpolygons) | |
| yield self._mesh | |
| finally: | |
| pass | |
| return self | |
| def __exit__(self, exc_type, exc_val, exc_tb): | |
| if self._mesh: | |
| mesh = self._mesh | |
| bpy.data.meshes.remove(mesh, do_unlink=False) | |
| self._mesh = None | |
| def export(self): | |
| verts = self._meshverts | |
| nverts = self._meshnverts | |
| loops = self._meshloops | |
| nloops = self._meshnloops | |
| polygons = self._meshpolygons | |
| npolygons = self._meshnpolygons | |
| # vertices | |
| a = numpy.ndarray(nverts * 3, dtype=numpy.float32) | |
| verts.foreach_get("co", a) | |
| vlist = arnold.AiArrayConvert(nverts, 1, arnold.AI_TYPE_VECTOR, ctypes.c_void_p(a.ctypes.data)) | |
| # normals | |
| a = numpy.ndarray(nloops * 3, dtype=numpy.float32) | |
| loops.foreach_get("normal", a) | |
| nlist = arnold.AiArrayConvert(nloops, 1, arnold.AI_TYPE_VECTOR, ctypes.c_void_p(a.ctypes.data)) | |
| # polygons | |
| a = numpy.ndarray(npolygons, dtype=numpy.uint32) | |
| polygons.foreach_get("loop_total", a) | |
| nsides = arnold.AiArrayConvert(npolygons, 1, arnold.AI_TYPE_UINT, ctypes.c_void_p(a.ctypes.data)) | |
| a = numpy.ndarray(nloops, dtype=numpy.uint32) | |
| polygons.foreach_get("vertices", a) | |
| vidxs = arnold.AiArrayConvert(nloops, 1, arnold.AI_TYPE_UINT, ctypes.c_void_p(a.ctypes.data)) | |
| a = numpy.arange(nloops, dtype=numpy.uint32) | |
| nidxs = arnold.AiArrayConvert(nloops, 1, arnold.AI_TYPE_UINT, ctypes.c_void_p(a.ctypes.data)) | |
| arnold.AiNodeSetBool(self.node, "smoothing", True) | |
| arnold.AiNodeSetArray(self.node, "vlist", vlist) | |
| arnold.AiNodeSetArray(self.node, "nlist", nlist) | |
| arnold.AiNodeSetArray(self.node, "nsides", nsides) | |
| arnold.AiNodeSetArray(self.node, "vidxs", vidxs) | |
| arnold.AiNodeSetArray(self.node, "nidxs", nidxs) | |
| # uv | |
| for i, uvt in enumerate(self._mesh.uv_layers): | |
| if uvt.active_render: | |
| uvd = self._mesh.uv_layers[i].data | |
| nuvs = len(uvd) | |
| a = numpy.arange(nuvs, dtype=numpy.uint32) | |
| uvidxs = arnold.AiArrayConvert(nuvs, 1, arnold.AI_TYPE_UINT, ctypes.c_void_p(a.ctypes.data)) | |
| a = numpy.ndarray(nuvs * 2, dtype=numpy.float32) | |
| uvd.foreach_get("uv", a) | |
| uvlist = arnold.AiArrayConvert(nuvs, 1, arnold.AI_TYPE_VECTOR2, ctypes.c_void_p(a.ctypes.data)) | |
| arnold.AiNodeSetArray(self.node, "uvidxs", uvidxs) | |
| arnold.AiNodeSetArray(self.node, "uvlist", uvlist) | |
| break | |
| return self.node | |
| def _export_object_properties(ob, node): | |
| props = ob.arnold | |
| arnold.AiNodeSetByte(node, "visibility", props.visibility) | |
| arnold.AiNodeSetByte(node, "sidedness", props.sidedness) | |
| arnold.AiNodeSetBool(node, "receive_shadows", props.receive_shadows) | |
| arnold.AiNodeSetBool(node, "self_shadows", props.self_shadows) | |
| arnold.AiNodeSetBool(node, "invert_normals", props.invert_normals) | |
| arnold.AiNodeSetBool(node, "opaque", props.opaque) | |
| arnold.AiNodeSetBool(node, "matte", props.matte) | |
| #arnold.AiNodeSetArray(node, "disp_map", props.disp_map) | |
| arnold.AiNodeSetFlt(node, "disp_height", props.disp_height) | |
| if props.subdiv_type != 'none': | |
| arnold.AiNodeSetStr(node, "subdiv_type", props.subdiv_type) | |
| arnold.AiNodeSetByte(node, "subdiv_iterations", props.subdiv_iterations) | |
| arnold.AiNodeSetFlt(node, "subdiv_adaptive_error", props.subdiv_adaptive_error) | |
| arnold.AiNodeSetStr(node, "subdiv_adaptive_metric", props.subdiv_adaptive_metric) | |
| arnold.AiNodeSetStr(node, "subdiv_adaptive_space", props.subdiv_adaptive_space) | |
| arnold.AiNodeSetStr(node, "subdiv_uv_smoothing", props.subdiv_uv_smoothing) | |
| arnold.AiNodeSetBool(node, "subdiv_smooth_derivs", props.subdiv_smooth_derivs) |
lvxejay
commented
Mar 6, 2019
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